EP3531770B1 - Procédé et dispositif de configuration de ressources - Google Patents

Procédé et dispositif de configuration de ressources Download PDF

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Publication number
EP3531770B1
EP3531770B1 EP17888964.8A EP17888964A EP3531770B1 EP 3531770 B1 EP3531770 B1 EP 3531770B1 EP 17888964 A EP17888964 A EP 17888964A EP 3531770 B1 EP3531770 B1 EP 3531770B1
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EP
European Patent Office
Prior art keywords
control channel
subcarrier width
indication information
slot
symbols
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EP17888964.8A
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German (de)
English (en)
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EP3531770A1 (fr
EP3531770A4 (fr
Inventor
Xu Zhang
Lixia Xue
Bingyu Qu
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/0064—Rate requirement of the data, e.g. scalable bandwidth, data priority
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0078—Timing of allocation
    • H04L5/0087—Timing of allocation when data requirements change
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA

Definitions

  • This application relates to the field of communications technologies, and in particular, to a resource configuration method and apparatus.
  • a control channel includes two types: a physical downlink control channel (Physical Downlink Control Channel, PDCCH) and an enhanced physical downlink control channel (Enhanced Physical Downlink Control Channel, EPDCCH).
  • PDCCH Physical Downlink Control Channel
  • EPDCCH Enhanced Physical Downlink Control Channel
  • a time-frequency resource region of the PDCCH is located in first 0 to 3 orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) symbols of a subframe, and a time-frequency resource region of the EPDCCH occupies all downlink OFDM symbols in the subframe except those for the PDCCH.
  • OFDM Orthogonal Frequency Division Multiplexing
  • a time-frequency region of the PDCCH occupies an entire system bandwidth
  • a time-frequency region of the EPDCCH occupies a frequency-domain width of at least one physical resource block (Physical Resource Block, PRB) in frequency domain.
  • PRB Physical Resource Block
  • a size of a time-frequency resource of a PDCCH is indicated by indication information carried in a physical control format indicator channel (Physical Control Format Indicator Channel, PCFICH) channel and system broadcast information carried in a PBCH channel, and the PCFICH channel carries two bits of indication information used to indicate only a quantity of OFDM symbols occupied in time domain by the time-frequency resource region of the PDCCH, and there are usually 0 to 3 OFDM symbols.
  • a frequency-domain size of the time-frequency resource of the PDCCH is indirectly indicated by system broadcast information carried in a physical broadcast channel (Physical Broadcast Channel, PBCH).
  • indication information that indicates the system bandwidth size and that is carried in the PBCH channel may be used to indirectly indicate the frequency-domain size of the region of the PDCCH.
  • the system bandwidth size includes ⁇ 1.4 MHz, 3 MHz, 5 MHz, 10 MHz, 15 MHz, 20 MHz ⁇ , and a master information block (master information block, MIB) includes 3-bit information used to indicate the system bandwidth size; and the frequency-domain size of the PDCCH may also be obtained based on the 3-bit information.
  • a size of a frequency-domain resource of an EPDCCH is indicated by using higher-layer signaling (for example, RRC signaling).
  • the higher-layer signaling indicates a subframe of the EPDCCH and a frequency-domain location of a PRB occupied by the EPDCCH.
  • the PRB may occupy a series of consecutive frequency-domain resources, or may occupy a plurality of inconsecutive PBR resource blocks in frequency domain.
  • the time-domain subframe of the EPDCCH is a subframe predefined in the standard (for example, a subframe for a non-multicast channel or a non-special subframe under some radio frame configurations), and a quantity of OFDM symbols occupied in time domain by the EPDCCH also needs to be adjusted based on received indication information of a PCFICH channel, that is, the time domain resource occupied by the EPDCCH is orthogonal to a time-frequency resource of the PDCCH.
  • a time-frequency resource of a control channel may use one or more of the plurality of subcarrier widths, and the subcarrier widths may be predefined or preconfigured.
  • a time-domain location of the control channel is unchanged, but a subcarrier width used for the control channel changes, for example, from 15 kHz to 30 kHz, a quantity of OFDM symbols included in a region for the control channel increases; if a PCFICH is used, a maximum quantity of OFDM symbols that is indicated by the PCFICH is less than a quantity of OFDM symbols that can be used by the system currently; consequently, a terminal cannot identify the frequency-domain region for the control channel except the three OFDM symbols indicated. Therefore, how the terminal determines the time-frequency resource occupied by the control channel becomes a problem to be resolved urgently.
  • WO 2016/00463 A1 relates to methods in UE and eNB for transmitting a waveform for wireless communication networks.
  • the document disclosed a method for a UE to transmit an uplink channel carrying data or control information bits to an eNB, the method comprising: receiving an OFDM-based downlink channel occupying a set of downlink resource elements, where each downlink resource element has a downlink subcarrier spacing in the frequency domain and a downlink symbol duration in the time domain; generating a SC-FDMA based uplink channel from the information bits, where the uplink channel occupies a set of uplink resource elements and each uplink resource element has an uplink subcarrier spacing in the frequency domain differing from the downlink subcarrier spacing, and a uplink symbol duration in the time domain differing from the downlink symbol duration; and transmitting the SC-FDMA based uplink channel.
  • the information bits are uplink data information bits
  • the information bits are uplink control information bits.
  • the document by Ericsson, titled “Summary of e-mail discussions on downlink control signalling", 3GPP® Draft, R1-1612908, 13 November 2016 provides a summary of an email discussion on L1/L2 downlink control channel signalling.
  • the document from Guangdong OPPO Mobile Telecom, titled “Downlink control channel design consideration”, 3GPP® Draft, R1-1611704, 13 November 2016 provides initial details of designs for New Radio downlink control channels.
  • Embodiments of this application provide a resource configuration method and apparatus, so that a terminal can determine a time-frequency resource occupied by a control channel, thereby increasing resource utilization.
  • an embodiment this application provides a resource configuration method, including:
  • the terminal may determine the subcarrier width used for the first control channel, and then determine, based on the maximum quantity of symbols that corresponds to the subcarrier width used for the first control channel, the quantity of symbols occupied by the first control channel, to determine a time-frequency resource occupied by the first control channel. In this way, the terminal can quickly determine information carried in the first control channel and quickly access a network, thereby increasing resource utilization.
  • the subcarrier width includes a first subcarrier width and a second subcarrier width
  • the maximum quantity of symbols occupied by the first control channel includes a first maximum symbol quantity and a second maximum symbol quantity, where the first maximum symbol quantity corresponds to the first subcarrier width, and the second maximum symbol quantity corresponds to the second subcarrier width; and that the different subcarrier widths correspond to different maximum symbol quantities includes: a ratio of the first maximum symbol quantity to the second maximum symbol quantity is equal to a ratio of the first subcarrier width to the second subcarrier width, and the first subcarrier width is different from the second subcarrier width.
  • the quantity of symbols occupied by the first control channel is less than or equal to a maximum quantity of symbols included in a time domain resource region of the first control channel, and the time domain resource region is predefined, or the time domain resource region is indicated by system information, higher-layer signaling, or initial access information.
  • the determining, by the terminal, the quantity of symbols occupied by the first control channel includes:
  • the terminal directly determines the maximum quantity of symbols included in the time domain resource region, as the quantity of symbols occupied by the first control channel, to quickly determine a time-frequency resource occupied by the first control channel.
  • the indication information is further used to indicate the quantity of symbols occupied by the first control channel.
  • the indication information and the first control channel are in a same slot.
  • the determining, by the terminal, a quantity of symbols occupied by the first control channel includes: determining, by the terminal based on the indication information in an M th slot after a slot in which the indication information is received, a quantity of symbols occupied in the M th slot by the first control channel, where M is a positive integer greater than or equal to 1.
  • a subcarrier width used for the first control channel sent in the M th slot and/or the quantity of symbols occupied in the M th slot by the first control channel are indicated by the indication information sent in a slot before the M th slot. Therefore, the subcarrier width used for the first control channel resource sent in the M th slot and/or the quantity of symbols occupied by the first control channel resource sent in the M th slot can be configured more flexibly.
  • the determining, by the terminal based on the indication information, a quantity of symbols occupied by the first control channel includes: determining, by the terminal based on the indication information in N consecutive slots starting from a P th slot after a slot in which the indication information is received, a quantity of symbols occupied in each of the N slots by the first control channel, where P and N are positive integers greater than 1.
  • the subcarrier width used for the first control channel sent in each of the N consecutive slots and/or the quantity of symbols occupied by the first control channel sent in each of the N consecutive slots are indicated by the indication information sent in a slot before the N slots. Therefore, the subcarrier width used for the first control channel resource sent in each of the N slots and/or the quantity of symbols occupied by the first control channel resource sent in each of the N slots can be configured more flexibly.
  • N is a preset value, or N is determined by the terminal based on a received higher-layer signaling configuration.
  • the method further includes:
  • control information further indicates a time domain resource region occupied by the second control channel; and the determining, by the terminal based on the control information, a quantity of symbols occupied by the second control channel includes:
  • the method further includes:
  • an embodiment this application provides a resource configuration apparatus, including:
  • the subcarrier width includes a first subcarrier width and a second subcarrier width
  • the maximum quantity of symbols occupied by the first control channel includes a first maximum symbol quantity and a second maximum symbol quantity, where the first maximum symbol quantity corresponds to the first subcarrier width, and the second maximum symbol quantity corresponds to the second subcarrier width; and that the different subcarrier widths correspond to different maximum symbol quantities includes: a ratio of the first maximum symbol quantity to the second maximum symbol quantity is equal to a ratio of the first subcarrier width to the second subcarrier width, and the first subcarrier width is different from the second subcarrier width.
  • the quantity of symbols occupied by the first control channel is less than or equal to a maximum quantity of symbols included in a time domain resource region of the first control channel, and the time domain resource region is predefined, or the time domain resource region is indicated by system information, higher-layer signaling, or initial access information.
  • processing unit is specifically configured to:
  • the indication information is further used to indicate the quantity of symbols occupied by the first control channel.
  • the indication information and the first control channel are in a same slot, where the indication information may be physical layer broadcast signaling, for example, PCFICH signaling, and the physical layer broadcast signaling is used to indicate a quantity of symbols used for a control channel in a current slot.
  • the indication information may be physical layer broadcast signaling, for example, PCFICH signaling
  • the physical layer broadcast signaling is used to indicate a quantity of symbols used for a control channel in a current slot.
  • the processing unit is specifically configured to: determine, based on the indication information in an M th slot after a slot in which the indication information is received, a quantity of symbols occupied in the M th slot by the first control channel, where M is a positive integer greater than or equal to 1.
  • the processing unit is specifically configured to: determine, based on the indication information in N consecutive slots starting from a P th slot after a slot in which the indication information is received, a quantity of symbols occupied in each of the N slots by the first control channel, where P and N are positive integers greater than 1.
  • N is a preset value, or N is determined by the apparatus based on a received higher-layer signaling configuration.
  • the transceiver unit is further configured to:
  • control information further indicates a time domain resource region occupied by the second control channel; and the processing unit is specifically configured to:
  • the transceiver unit is further configured to:
  • an embodiment of this application provides a computer storage medium, configured to store computer software instructions used by the resource configuration apparatus provided in the second aspect or the third aspect, and the computer storage medium includes a program designed for executing the first aspect.
  • an embodiment this application provides a resource configuration method, including:
  • the access network device indicates, by using the indication information, the subcarrier width used for the first control channel, so that the terminal can determine, based on the subcarrier width used for the first control channel, the maximum quantity of symbols that corresponds to the subcarrier width used for the first control channel, determine a time-frequency resource occupied by the first control channel, quickly determine information carried in the first control channel, and quickly access a network, thereby increasing resource utilization.
  • the subcarrier width includes a first subcarrier width and a second subcarrier width
  • the maximum quantity of symbols occupied by the first control channel includes a first maximum symbol quantity and a second maximum symbol quantity, where the first maximum symbol quantity corresponds to the first subcarrier width, and the second maximum symbol quantity corresponds to the second subcarrier width; and that the different subcarrier widths correspond to different maximum symbol quantities includes: a ratio of the first maximum symbol quantity to the second maximum symbol quantity is equal to a ratio of the first subcarrier width to the second subcarrier width, and the first subcarrier width is different from the second subcarrier width.
  • the quantity of symbols occupied by the first control channel is less than or equal to a maximum quantity of symbols included in a time domain resource region of the first control channel, and the time domain resource region is predefined, or the time domain resource region is indicated by system information, higher-layer signaling, or initial access information.
  • the indication information indicates a quantity of symbols occupied by the first control channel that is transmitted in a slot in which the indication information is sent.
  • the indication information indicates a quantity of symbols occupied by the first control channel that is transmitted in an M th slot after the slot in which the indication information is sent, where M is a positive integer greater than or equal to 1.
  • the indication information indicates a quantity of symbols occupied by the first control channel that is transmitted in each of N consecutive slots starting from a P th slot after a slot in which the indication information is sent, where P and N are positive integers greater than 1.
  • the indication information is in a first slot of a subframe in which the indication information is sent; and the indication information indicates a time-frequency resource, used to transmit the first control channel, in each slot included in the subframe.
  • the method further includes:
  • control information further indicates a time domain resource region occupied by the second control channel.
  • the sending, by the access network device, the indication information to a terminal includes:
  • an embodiment this application provides a resource configuration apparatus, including:
  • the subcarrier width includes a first subcarrier width and a second subcarrier width
  • the maximum quantity of symbols occupied by the first control channel includes a first maximum symbol quantity and a second maximum symbol quantity, where the first maximum symbol quantity corresponds to the first subcarrier width, and the second maximum symbol quantity corresponds to the second subcarrier width; and that the different subcarrier widths correspond to different maximum symbol quantities includes: a ratio of the first maximum symbol quantity to the second maximum symbol quantity is equal to a ratio of the first subcarrier width to the second subcarrier width, and the first subcarrier width is different from the second subcarrier width.
  • the quantity of symbols occupied by the first control channel is less than or equal to a maximum quantity of symbols included in a time domain resource region of the first control channel, and the time domain resource region is predefined, or the time domain resource region is indicated by system information, higher-layer signaling, or initial access information.
  • the indication information indicates a quantity of symbols occupied by the first control channel that is transmitted in a slot in which the indication information is sent.
  • the indication information indicates a quantity of symbols occupied by the first control channel that is transmitted in an M th slot after the slot in which the indication information is sent, where M is a positive integer greater than or equal to 1.
  • the indication information indicates a quantity of symbols occupied by the first control channel that is transmitted in each of N consecutive slots starting from a P th slot after a slot in which the indication information is sent, where P and N are positive integers greater than 1.
  • the indication information is in a first slot of a subframe in which the indication information is sent; and the indication information indicates a time-frequency resource, used to transmit the first control channel, in each slot included in the subframe.
  • the transceiver unit is further configured to:
  • control information further indicates a time domain resource region occupied by the second control channel.
  • an embodiment of this application provides a computer storage medium, configured to store computer software instructions used by the resource configuration apparatus provided in the sixth aspect or the seventh aspect, and the computer storage medium includes a program designed for executing the fifth aspect.
  • the embodiments of this application may be applied to various mobile communications systems, for example, a global system for mobile communications (Global System of Mobile communication, GSM) system, a code division multiple access (Code Division Multiple Access, CDMA) system, a wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) system, general packet radio service (General Packet Radio Service, GPRS), a long term evolution (Long Term Evolution, LTE) system, a long term evolution-advanced (Advanced Long Term Evolution, LTE-A) system, a universal mobile telecommunications system (Universal Mobile Telecommunication System, UMTS), an evolved long term evolution (evolved Long Term Evolution, eLTE) system, and a 5G mobile communications system.
  • GSM Global System of Mobile communication
  • CDMA code division multiple access
  • WCDMA wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE long term evolution
  • LTE-A long term evolution-advanced
  • FIG. 1 is a schematic flowchart of a resource configuration method according to an embodiment of this application.
  • the method includes the following steps.
  • Step 101 An access network device generates indication information, where the indication information is used to indicate a subcarrier width used for a first control channel, a maximum quantity of symbols occupied by the first control channel is determined by the subcarrier width, and the different subcarrier widths correspond to different maximum symbol quantities.
  • the subcarrier width used for the first control channel is a subcarrier width used to send the first control channel.
  • duration of each symbol occupied by the first control channel is shortened; however, a total quantity of time-frequency resources occupied by the first control channel maintains unchanged.
  • symbols occupied by the first control channel sent in a slot are a plurality of symbols starting from an initial symbol (including the initial symbol) in the slot.
  • the first control channel sent in a slot n occupies three symbols; in this case, the symbols occupied by the first control channel are first three symbols in the slot n.
  • the first control channel includes but is not limited to a channel such as a PDCCH or an EPDCCH.
  • the maximum quantity of symbols occupied by the first control channel is a maximum quantity of symbols that can be used within a time-frequency resource of the first control channel.
  • the duration of each symbol occupied by the first control channel is shortened; therefore, if a maximum time occupied by the first control channel in time domain is fixed, the maximum quantity of symbols increases with the increase of the subcarrier width used for the first control channel.
  • a time-frequency resource in each slot usually includes a control region and a data region.
  • the control region is used to send control information
  • the data region is used to send data.
  • the time-frequency resource of the first control channel is a time-frequency resource included in a control region of a slot in which the first control channel is located.
  • Step 102 The access network device sends the indication information to a terminal.
  • the access network device may send the indication information in a plurality of manners.
  • the access network device sends the indication information to the terminal by using higher-layer signaling.
  • the higher-layer signaling includes a master information block (Master Information Block, MIB), a system information block (System Information Block, SIB), radio resource control (Radio Resource Control, RRC) signaling, or other higher-layer signaling having a similar characteristic.
  • MIB Master Information Block
  • SIB System Information Block
  • RRC Radio Resource Control
  • the access network device sends the indication information to the terminal by using downlink control information (Downlink Control Information, DCI), for example, sending the indication information in common search space of a downlink control channel.
  • DCI Downlink Control Information
  • a time-frequency resource for the downlink control channel includes at least one OFDM symbol of initial OFDM symbols of a slot or a subframe.
  • the search space is a part of the time-frequency resource for the downlink control channel.
  • Control information in the common search space may be received by a group of terminals or all terminals in a cell.
  • the access network device sends the indication information to the terminal by using physical layer broadcast control signaling, for example, similar to broadcast signaling carried in a PCFICH channel in LTE; or a time-frequency resource occupied by the physical layer broadcast control signaling includes at least one OFDM symbol of initial OFDM symbols of a slot or a subframe, and the physical layer broadcast control signaling may be detected and received by a group of terminals or all terminals in a cell.
  • physical layer broadcast control signaling for example, similar to broadcast signaling carried in a PCFICH channel in LTE; or a time-frequency resource occupied by the physical layer broadcast control signaling includes at least one OFDM symbol of initial OFDM symbols of a slot or a subframe, and the physical layer broadcast control signaling may be detected and received by a group of terminals or all terminals in a cell.
  • the access network device may alternatively send the indication information in other manners. Examples are not described one by one herein.
  • Step 103 The terminal receives the indication information, where the indication information is used to indicate the subcarrier width used for the first control channel.
  • Step 104 The terminal determines, based on the indication information, a quantity of symbols occupied by the first control channel, where the quantity of symbols occupied by the first control channel is less than or equal to the maximum quantity of symbols.
  • the first control channel may occupy a maximum of four symbols, but the first control channel may actually use two symbols; in this case, the quantity of symbols used for the first control channel is less than the maximum quantity of symbols.
  • the time domain resource region of the first control channel may be predefined between the access network device and the terminal, or may be indicated by the access network device to the terminal by using system information, higher-layer signaling, or initial access information.
  • the system information may be most essential system information used for initial access, for example, a master information block (Master information Block, MIB) in LTE, or is referred to as an essential system information block (Essential System Information Block, eSIB), a system information block (System Information Block, SIB), or the like in a next generation system.
  • the initial access information may include a random access response (Random Access Response, RAR), a Message4, or the like.
  • the Message4 may be an RRC establishment or re-establishment command sent by the access network device to the terminal in LTE.
  • the access network device may indicate, to the terminal by using the RAR, the time domain resource region of the first control channel.
  • the RAR includes at least uplink timing advance (Timing Advance, TA) indication information.
  • the access network device may alternatively indicate, to the terminal by using the Message4, the time domain resource region of the first control channel.
  • the Message4 may be an RRC establishment or re-establishment command sent by the access network device to the terminal in LTE.
  • the Message4 includes at least terminal identification indication information.
  • an area of the time-frequency resource occupied by the first control channel maintains unchanged, that is, a product of duration, in time domain, of the time-frequency resource occupied by the first control channel and a bandwidth width of the time-frequency resource in frequency domain maintains unchanged.
  • a time domain resource is expressed in a quantity of OFDM symbols, and a bandwidth width is in a unit of kHz.
  • the subcarrier width includes a first subcarrier width and a second subcarrier width
  • the maximum quantity of symbols occupied by the first control channel includes a first maximum symbol quantity and a second maximum symbol quantity
  • a ratio of the first maximum symbol quantity to the second maximum symbol quantity is equal to a ratio of the first subcarrier width to the second subcarrier width
  • the first subcarrier width is different from the second subcarrier width.
  • the first maximum symbol quantity corresponds to the first subcarrier width
  • the second maximum symbol quantity corresponds to the second subcarrier width.
  • FIG. 2 to (c) in FIG. 2 are schematic diagrams of a time-frequency resource according to an embodiment of this application.
  • the first control channel occupies different quantity of symbols.
  • a subcarrier width of 15 kHz is used for the first control channel, and the first control channel occupies one symbol; it is assumed that the one symbol is the first maximum symbol quantity, and 15 kHz is the first subcarrier width.
  • a subcarrier width of 30 kHz is used for the first control channel, and the first control channel occupies two symbols; it is assumed that the two symbols are the second maximum symbol quantity, and 30 kHz is the second subcarrier width. Based on the foregoing assumptions, a ratio of the first maximum symbol quantity to the second maximum symbol quantity is 1/2, and a ratio of the first subcarrier width to the second subcarrier width is also 1/2.
  • a subcarrier width of 60 kHz is used for the first control channel, and the first control channel occupies four symbols.
  • the subcarrier width in (c) in FIG. 2 is set as the first or second subcarrier width, and the symbol quantity is set as the first or second maximum symbol quantity; this also complies with the rule in (a) in FIG. 2 or (b) in FIG. 2 , that is, a ratio of the first maximum symbol quantity to the second maximum symbol quantity is equal to a ratio of the first subcarrier width to the second subcarrier width.
  • the terminal may determine a maximum quantity of symbols mapped with the subcarrier width used in each time-frequency resource, to determine a maximum quantity of symbols included in each time-frequency resource.
  • the access network device may use all resources in the time domain resource region of the first control channel to send the first control channel.
  • the terminal may first determine, based on the indication information, the subcarrier width used for the first control channel; then determine, based on the subcarrier width, a maximum quantity of symbols included in the time domain resource region; and finally determine the maximum quantity of symbols included in the time domain resource region as the quantity of symbols occupied by the first control channel.
  • the access network device may alternatively not use all resources in the time domain resource region of the first control channel to send the first control channel; therefore, the quantity of symbols occupied by the first control channel is less than or equal to the maximum quantity of symbols included in the time domain resource region of the first control channel.
  • a specific quantity of symbols occupied by the first control channel needs to be determined depending on an actual case.
  • the time domain resource region of the first control channel includes a maximum of four consecutive symbols, but the access network device uses only first two symbols to send the first control channel, and uses the rest two symbols to transmit other data.
  • the indication information sent by the access network device may be further used to indicate the quantity of symbols occupied by the first control channel. It should be noted that in this implementation, the indication information and the first control channel may be sent in a same slot, or may be sent in different slots.
  • the terminal may directly determine, based on the indication information, the quantity of symbols occupied by the first control channel.
  • the time-frequency resource region of the first control channel has been predefined between the access network device and the terminal, or has been notified to the terminal by the access network device by using the higher-layer signaling or initial access information; therefore, the quantity, indicated by the indication information, of symbols occupied by the first control channel does not exceed the maximum quantity of symbols included in the time-frequency resource region of the first control channel. In this way, signaling used to send the indication information is saved, thereby reducing resources.
  • the indication information may indicate both the subcarrier width used for the first control channel and the quantity of symbols occupied by the first control channel.
  • the indication information includes K bits, and different values of the K bits included in the indication information correspond to different subcarrier widths and different symbol quantities.
  • Table 1 shows a correspondence among indication information, a subcarrier width, and an actual symbol quantity.
  • the indication information may not only indicate a subcarrier width used for the first control channel that is sent in a same slot as the indication information and/or the quantity of symbols occupied by the first control channel, but also indicate a subcarrier width used for the first control channel that is sent in a slot different from that for the indication information and/or the quantity of symbols occupied by the first control channel.
  • Detailed descriptions are provided in the following based on different scenarios.
  • the indication information sent by the access network device may indicate at least one of a subcarrier width used for a first control channel transmitted in an M th slot after a slot in which the indication information is sent, and a quantity of symbols occupied by the first control channel that is transmitted in the M th slot, where M is a positive integer greater than or equal to 1.
  • the indication information is in a subframe n, and after the indication information is received, a quantity of symbols used for the first control channel in an (n+M) th subframe is a quantity of symbols that is indicated by the indication information in the subframe n.
  • step 104 after receiving the indication information, the terminal determines, based on the indication information in the M th slot after the slot in which the indication information is sent, at least one of the subcarrier width used for the first control channel in the M th slot and the quantity of symbols occupied by the first control channel.
  • an M th slot after a slot in which the indication information is received does not include the slot in which the indication information is received, and there are M-1 slots between the M th slot and the slot in which the indication information is received by the terminal.
  • the quantity of symbols used for the first control channel in the M th slot may change.
  • the indication information may be downlink control indication information.
  • the downlink control indication information further includes indication information used to indicate a value of M.
  • M may alternatively be a preset value, or M may be set by the access network device by using higher-layer signaling.
  • the terminal determines a value of M based on a received higher-layer signaling configuration.
  • FIG. 3 is a schematic diagram of resource indication according to an embodiment of this application.
  • a subcarrier width of 60 kHz is used for the first control channel sent in a same slot as the indication information, and occupies four symbols;
  • a subcarrier width of 30 kHz is used for a first channel in the M th slot after the slot in which the indication information is sent, and the first control channel occupies one symbol. All the foregoing information may be indicated by the indication information.
  • the indication information may be carried in DCI.
  • the subcarrier width used for the first control channel sent in one slot and/or the quantity of symbols occupied by the first control channel are indicated by the indication information sent in a slot before the slot. Therefore, the subcarrier width used for the first control channel resource and the quantity of symbols occupied by the first control channel resource can be configured more flexibly.
  • the indication information sent by the access network device may indicate a subcarrier width used for the first control channel transmitted in each of N consecutive slots starting from a P th slot after a slot in which the indication information is sent, and/or a quantity of symbols occupied by the first control channel that is transmitted in each of the N consecutive slots, where P and N are positive integers greater than 1.
  • step 104 the terminal determines, based on the indication information in N consecutive slots starting from a P th slot after a slot in which the indication information is received, the quantity of symbols occupied in each of the N slots by the first control channel.
  • a P th slot after a slot in which the indication information is received does not include the slot in which the indication information is received, and there are P-1 slots between the P th slot and the slot in which the indication information is received by the terminal.
  • the quantity of symbols used for the first control channel in the N consecutive slots starting from the P th slot may change.
  • the N slots include the P th slot.
  • P and/or N may alternatively be a preset value, or P and/or N may be set by the access network device by using higher-layer signaling. When P and/or N is set by the access network device by using the higher-layer signaling, the terminal determines a value of P and/or a value of N based on a received higher-layer signaling configuration.
  • the indication information is in a slot n, and after the indication information is received, a quantity of symbols occupied in a slot n+P by the first control channel may be indicated by the indication information carried in the slot n.
  • a quantity of symbols used for the first control channel in each of N consecutive slots from the slot n+P to a slot n+P+N-1 is indicated by the indication information carried in the slot n.
  • FIG. 4 is a schematic diagram of resource indication according to an embodiment of this application.
  • the indication information is in a slot 0, N consecutive slots starting from a P th slot after the slot 0 are a slot 1 to a slot 4.
  • the indication information in the slot 0 indicates a subcarrier width used for a first control channel in each of the slot 1 to the slot 4, and/or a quantity of symbols occupied by the first control channel.
  • the indication information may further indicate a subcarrier width, used for the first control channel in a same slot as the indication information, and/or a quantity of symbols occupied by the first control channel.
  • a subcarrier width of 15 kHz is used for the first control channel in the slot 0, and the first control channel occupies one symbol in the slot 0; subcarrier widths of 30 kHz, 15 kHz, 30 kHz, and 60 kHz are used for the first control channel in the slot 1 to the slot 4, respectively; and the first control channel occupies two symbols, one symbol, two symbols, and four symbols in the slot 1 to the slot 4 respectively.
  • the slot in which the indication information is sent may be a first slot in the subframe.
  • FIG. 5 is a schematic diagram of resource indication according to an embodiment of this application.
  • a radio frame includes 10 subframes: a subframe 0 to a subframe 9.
  • the subframe 0 includes a slot 0 to a slot 4.
  • a subcarrier width used for a first control channel in each slot in the subframe 0 and/or a quantity of symbols occupied in each slot in the subframe 0 by the first control channel may be indicated by indication information in the slot 0.
  • Subcarrier widths of 15 kHz, 30 kHz, 15 kHz, 30 kHz, and 60 kHz are used for the first control channel in the slot 0 to the slot 4 respectively, and the first control channel occupies one symbol, two symbols, one symbol, two symbols, and four symbols in the slot 0 to the slot 4 respectively.
  • one slot further includes a second control channel sent together with a data channel in a data region.
  • the access network device may send control information through the first control channel, to indicate, based on the control information, a subcarrier width used for the second control channel.
  • a time-frequency resource of the second control channel is in a data channel region.
  • the data channel region is a time domain resource different from a time domain resource occupied in a current slot by the first control channel, as shown in FIG. 6 .
  • a time domain resource occupied by the second control channel may be in any OFDM symbol within a data region.
  • data regions in the slot 0 and the slot 1 are time domain resource regions occupied by a data channel.
  • the second control channel occupies two symbols in the data region in the slot, and a subcarrier width of 30 kHz is used for the second control channel; in the slot 1, the second control channel occupies four symbols in the data region in the slot, and a subcarrier width of 60 kHz is used for the second control channel.
  • Both a time domain resource occupied in the slot 0 by the second control channel and a time domain resource occupied in the slot 1 by the second control channel may be indicated by the first control channel in the slot 0.
  • control information is used to indicate a subcarrier width used for the second control channel.
  • the terminal may determine the subcarrier width used for the second control channel, to determine, based on the subcarrier width used for the second control channel, a quantity of symbols occupied by the second control channel.
  • the control information corresponding to the first control channel may be used to indicate the subcarrier width for the second control channel in a same slot as the first control channel, or may be used to indicate a subcarrier width for a second control channel in a slot after the slot in which the first control channel is located.
  • the terminal may determine, based on the control information, the subcarrier width used for the second control channel; then determine, based on the subcarrier width used for the second control channel, a maximum quantity of symbols included in the time domain resource region occupied by the second control channel; and finally determine the maximum quantity of symbols included in the time domain resource region occupied by the second control channel, as the quantity of symbols occupied by the second control channel.
  • control information is used to indicate a subcarrier width used for a data channel of the second control channel.
  • the subcarrier width used for the second control channel is the same as the subcarrier width used for the data channel of the second control channel.
  • the terminal may first determine, based on the subcarrier width used for the data channel, the subcarrier width used for second control channel, that is, using the subcarrier width used for the data channel as the subcarrier width used for second control channel; then the terminal determines, based on the subcarrier width used for second control channel, a maximum quantity of symbols included in a time domain resource region occupied by the second control channel; finally the terminal determines the maximum quantity of symbols included in the time domain resource region occupied by the second control channel, as the quantity of symbols occupied by the second control channel.
  • an embodiment of this application further provides a resource configuration apparatus.
  • the apparatus may execute the foregoing method embodiment.
  • FIG. 7 is a schematic structural diagram of a resource configuration apparatus according to an embodiment of this application.
  • the apparatus includes a transceiver unit 701 and a processing unit 702.
  • the transceiver unit 701 is configured to receive indication information.
  • the indication information is used to indicate a subcarrier width used for a first control channel, a maximum quantity of symbols occupied by the first control channel is determined by the subcarrier width, and the different subcarrier widths correspond to different maximum symbol quantities.
  • the subcarrier width used for the first control channel is a subcarrier width used to send the first control channel.
  • duration of each symbol occupied by the first control channel is shortened; however, a total quantity of time-frequency resources occupied by the first control channel maintains unchanged.
  • the maximum quantity of symbols occupied by the first control channel is a maximum quantity of symbols that can be used within a time-frequency resource of the first control channel.
  • the processing unit 702 is configured to determine, based on the indication information, a quantity of symbols occupied by the first control channel, where the quantity of symbols occupied by the first control channel is less than or equal to the maximum quantity of symbols.
  • the subcarrier width includes a first subcarrier width and a second subcarrier width
  • the maximum quantity of symbols occupied by the first control channel includes a first maximum symbol quantity and a second maximum symbol quantity.
  • the first maximum symbol quantity corresponds to the first subcarrier width
  • the second maximum symbol quantity corresponds to the second subcarrier width.
  • That the different subcarrier widths correspond to different maximum symbol quantities includes: a ratio of the first maximum symbol quantity to the second maximum symbol quantity is equal to a ratio of the first subcarrier width to the second subcarrier width, and the first subcarrier width is different from the second subcarrier width.
  • the quantity of symbols occupied by the first control channel is less than or equal to a maximum quantity of symbols included in a time domain resource region of the first control channel, and the time domain resource region is predefined, or the time domain resource region is indicated by system information, higher-layer signaling, or initial access information.
  • An access network device may use some resources in the time domain resource region of the first control channel to send the first control channel; therefore, the quantity of symbols occupied by the first control channel is less than or equal to the maximum quantity of symbols included in the time domain resource region of the first control channel.
  • the system information may be most essential system information used for initial access, for example, a master information block in LTE, or is referred to as an essential system information block, a system information block, or the like in a next generation system.
  • the initial access information may include a random access response, a Message4, or the like.
  • the Message4 may be an RRC establishment or re-establishment command sent by the access network device to a terminal in LTE.
  • the higher-layer signaling may include a master information block, a system information block, RRC signaling, or other higher-layer signaling having a similar characteristic.
  • a master information block a system information block
  • RRC signaling a higher-layer signaling having a similar characteristic.
  • processing unit 702 is specifically configured to:
  • the access network device may use all resources in the time domain resource region of the first control channel to send the first control channel; therefore, the quantity of symbols occupied by the first control channel is equal to the maximum quantity of symbols included in the time domain resource region of the first control channel.
  • the indication information is further used to indicate the quantity of symbols occupied by the first control channel.
  • the indication information and the first control channel are in a same slot.
  • the indication information may be physical layer broadcast signaling, for example, PCFICH signaling.
  • the physical layer broadcast signaling is used to indicate a quantity of symbols used for a control channel in a current slot.
  • the indication information includes K bits, and different values of the K bits included in the indication information correspond to different subcarrier widths and different symbol quantities.
  • step 103 For other content of the indication information, refer to the descriptions in step 103 and step 104, and no details are repeated herein.
  • the processing unit 702 is specifically configured to: determine, based on the indication information in an M th slot after a slot in which the indication information is received, a quantity of symbols occupied in the M th slot by the first control channel, where M is a positive integer greater than or equal to 1.
  • an M th slot after a slot in which the indication information is received does not include the slot in which the indication information is received, and there are M-1 slots between the M th slot and the slot in which the indication information is received by the terminal.
  • the processing unit 702 is specifically configured to: determine, based on the indication information in N consecutive slots starting from a P th slot after a slot in which the indication information is received, a quantity of symbols occupied in each of the N slots by the first control channel, where P and N are positive integers greater than 1.
  • a P th slot after a slot in which the indication information is received does not include the slot in which the indication information is received, and there are P-1 slots between the P th slot and the slot in which the indication information is received by the terminal.
  • N is a preset value, or N is determined by the apparatus based on a received higher-layer signaling configuration.
  • the transceiver unit 701 is further configured to: obtain control information on the first control channel, where the control information is used to indicate a subcarrier width used for a second control channel.
  • the processing unit 702 is further configured to determine, based on the control information, a quantity of symbols occupied by the second control channel.
  • step 104 For other content of the control information, refer to the descriptions in step 104, and no details are repeated herein.
  • control information further indicates a time domain resource region occupied by the second control channel.
  • the processing unit 702 is specifically configured to:
  • the transceiver unit 701 is further configured to: obtain control information on the first control channel, where the control information is used to indicate information about a subcarrier width used for a data channel of a second control channel.
  • the processing unit 702 is further configured to: determine, based on the subcarrier width used for the data channel, a subcarrier width used for the second control channel; and determine, based on the subcarrier width used for the second control channel, a quantity of symbols occupied by the second control channel.
  • a terminal 800 may include a processor 801, a transceiver 802, and a memory 803.
  • the memory 803 may be configured to store a program/code pre-installed on the terminal 800 before delivery, or may store code or the like to be executed by the processor 801.
  • the terminal 800 according to this embodiment of this application may be corresponding to the terminal in the resource configuration method in the foregoing embodiment of this application and the terminal 800 in this embodiment of this application, and the foregoing or other operations and/or functions of the units of the terminal 800 are respectively used to implement the corresponding procedures in the method shown in FIG. 1 .
  • the terminal 800 may be corresponding to the terminal in the resource configuration method in the foregoing embodiment of this application and the terminal 800 in this embodiment of this application, and the foregoing or other operations and/or functions of the units of the terminal 800 are respectively used to implement the corresponding procedures in the method shown in FIG. 1 .
  • no details are repeated herein.
  • an embodiment of this application further provides a resource configuration apparatus.
  • the apparatus may execute the foregoing method embodiment.
  • FIG. 9 is a schematic structural diagram of a resource configuration apparatus according to an embodiment of this application.
  • the apparatus includes a processing unit 901 and a transceiver unit 902.
  • the processing unit 901 is configured to generate indication information.
  • the indication information is used to indicate a subcarrier width used for a first control channel, a maximum quantity of symbols occupied by the first control channel is determined by the subcarrier width, and the different subcarrier widths correspond to different maximum symbol quantities.
  • the subcarrier width used for the first control channel is a subcarrier width used to send the first control channel.
  • duration of each symbol occupied by the first control channel is shortened; however, a total quantity of time-frequency resources occupied by the first control channel maintains unchanged.
  • the maximum quantity of symbols occupied by the first control channel is a maximum quantity of symbols that can be used within a time-frequency resource of the first control channel.
  • the transceiver unit 902 is configured to send the indication information to a terminal.
  • the transceiver unit 902 may send the indication information in a plurality of manners. In a first possible implementation, the transceiver unit 902 may send the indication information to the terminal by using higher-layer signaling. In a second possible implementation, the transceiver unit 902 may send the indication information to the terminal by using DCI. In a third possible implementation, the transceiver unit 902 may send the indication information to the terminal by using physical layer broadcast control signaling. For specific content of the foregoing implementation, refer to the descriptions in step 102, and no details are repeated herein.
  • the subcarrier width includes a first subcarrier width and a second subcarrier width
  • the maximum quantity of symbols occupied by the first control channel includes a first maximum symbol quantity and a second maximum symbol quantity.
  • the first maximum symbol quantity corresponds to the first subcarrier width
  • the second maximum symbol quantity corresponds to the second subcarrier width.
  • That the different subcarrier widths correspond to different maximum symbol quantities includes: a ratio of the first maximum symbol quantity to the second maximum symbol quantity is equal to a ratio of the first subcarrier width to the second subcarrier width, and the first subcarrier width is different from the second subcarrier width.
  • the quantity of symbols occupied by the first control channel is less than or equal to a maximum quantity of symbols included in a time domain resource region of the first control channel, and the time domain resource region is predefined, or the time domain resource region is indicated by system information, higher-layer signaling, or initial access information.
  • the apparatus may use some resources in the time domain resource region of the first control channel to send the first control channel; therefore, the quantity of symbols occupied by the first control channel is less than or equal to the maximum quantity of symbols included in the time domain resource region of the first control channel.
  • the quantity of symbols occupied by the first control channel is less than or equal to the maximum quantity of symbols included in the time domain resource region of the first control channel.
  • the system information may be most essential system information used for initial access, for example, a master information block in LTE, or is referred to as an essential system information block, a system information block, or the like in a next generation system.
  • the initial access information may include a random access response, a Message4, or the like.
  • the Message4 may be an RRC establishment or re-establishment command sent by an access network device to a terminal in LTE.
  • the indication information indicates a quantity of symbols occupied by the first control channel that is transmitted in a slot in which the indication information is sent.
  • the indication information includes K bits, and different values of the K bits included in the indication information correspond to different subcarrier widths and different symbol quantities.
  • the indication information indicates a quantity of symbols occupied by the first control channel that is transmitted in an M th slot after the slot in which the indication information is sent, where M is a positive integer greater than or equal to 1.
  • the indication information indicates a quantity of symbols occupied by the first control channel that is transmitted in each of N consecutive slots starting from a P th slot after a slot in which the indication information is sent, where P and N are positive integers greater than 1.
  • the indication information is in a first slot of a subframe in which the indication information is sent.
  • the indication information indicates a time-frequency resource, used to transmit the first control channel, in each slot included in the subframe.
  • the transceiver unit 902 is further configured to: send control information by using the time-frequency resource used to transmit the first control channel.
  • the control information is used to indicate a subcarrier width used for a second control channel, or the control information is used to indicate information about a subcarrier width for a data channel of a second control channel.
  • control information further indicates a time domain resource region occupied by the second control channel.
  • an access network device 1000 may include a processor 1001, a transceiver 1002, and a memory 1003.
  • the memory 1003 may be configured to store a program/code pre-installed on the access network device 1000 before delivery, or may store code or the like to be executed by the processor 1001.
  • the access network device 1000 may be corresponding to the access network device in the resource configuration method in the foregoing embodiment of this application and the access network device 1000 in this embodiment of this application, and the foregoing or other operations and/or functions of the units of the access network device 1000 are respectively used to implement the corresponding procedures in the method shown in FIG. 1 .
  • the access network device 1000 may be corresponding to the access network device in the resource configuration method in the foregoing embodiment of this application and the access network device 1000 in this embodiment of this application, and the foregoing or other operations and/or functions of the units of the access network device 1000 are respectively used to implement the corresponding procedures in the method shown in FIG. 1 .
  • no details are repeated herein.
  • the transceiver may be a wired transceiver, a wireless transceiver, or a combination thereof.
  • the wired transceiver may be, for example, an Ethernet interface.
  • the Ethernet interface may be an optical interface, an electrical interface, or a combination thereof.
  • the wireless transceiver may be, for example, a wireless local area network transceiver, a cellular network transceiver, a combination thereof.
  • the processor may be a central processing unit (English: central processing unit, CPU for short), a network processor (English: network processor, NP for short), or a combination of a CPU and an NP.
  • the processor may further include a hardware chip.
  • the hardware chip may be an application-specific integrated circuit (English: application-specific integrated circuit, ASIC for short), a programmable logic device (English: programmable logic device, PLD for short), or a combination thereof.
  • the PLD may be a complex programmable logic device (English: complex programmable logic device, CPLD for short), a field-programmable logic gate array (English: field-programmable gate array, FPGA for short), a generic array logic (English: generic array logic, GAL for short), or any combination thereof.
  • the memory may include a volatile memory (English: volatile memory), such as a random-access memory (English: random-access memory, RAM for short); or the memory may include a non-volatile memory (English: non-volatile memory), such as a read-only memory (English: read-only memory, ROM for short), a flash memory (English: flash memory), a hard disk drive (English: hard disk drive, HDD for short), or a solid-state drive (English: solid-state drive, SSD for short); or the memory may include a combination of memories of the foregoing categories.
  • a volatile memory such as a random-access memory (English: random-access memory, RAM for short
  • a non-volatile memory such as a read-only memory (English: read-only memory, ROM for short)
  • a flash memory English: flash memory
  • HDD hard disk drive
  • SSD solid-state drive
  • a bus interface may be further included.
  • the bus interface may include any quantity of interconnected buses and bridges that are specifically connected together by circuits that are of one or more processors represented by the processor and of a memory represented by the memory.
  • the bus interface may further connect together various other circuits such as a peripheral device, a voltage stabilizer, and a power management circuit. These are well known in the art, and therefore are not further described in this specification any more.
  • the bus interface provides an interface.
  • the transceiver provides a unit that communicates with various other devices on a transmission medium.
  • the processor is responsible for management of a bus architecture and general processing, and the memory may store data that is used by the processor during an operation.
  • These computer program instructions may be provided for a general-purpose computer, a dedicated computer, an embedded processor, or a processor of any other programmable data processing device to generate a machine, so that the instructions executed by a computer or a processor of any other programmable data processing device generate an apparatus for implementing a specified function in one or more processes in the flowcharts and/or in one or more blocks in the block diagrams.
  • These computer program instructions may be stored in a computer readable memory that can instruct the computer or any other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory generate an artifact that includes an instruction apparatus.
  • the instruction apparatus implements a specific function in one or more processes in the flowcharts and/or in one or more blocks in the block diagrams.
  • These computer program instructions may be loaded onto a computer or another programmable data processing device, so that a series of operations and steps are performed on the computer or the another programmable device, thereby generating computer-implemented processing. Therefore, the instructions executed on the computer or the another programmable device provide steps for implementing a specific function in one or more processes in the flowcharts and/or in one or more blocks in the block diagrams.
  • the indication information is in a first slot of a subframe in which the indication information is sent.
  • the indication information indicates a time-frequency resource, used to transmit the first control channel, in each slot included in the subframe.
  • the transceiver unit 902 is further configured to: send control information by using the time-frequency resource used to transmit the first control channel.
  • the control information is used to indicate a subcarrier width used for a second control channel, or the control information is used to indicate information about a subcarrier width for a data channel of a second control channel.
  • control information further indicates a time domain resource region occupied by the second control channel.
  • an access network device 1000 may include a processor 1001, a transceiver 1002, and a memory 1003.
  • the memory 1003 may be configured to store a program/code pre-installed on the access network device 1000 before delivery, or may store code or the like to be executed by the processor 1001.
  • the access network device 1000 may be corresponding to the access network device in the resource configuration method in the foregoing embodiment of this application and the access network device 1000 in this embodiment of this application, and the foregoing or other operations and/or functions of the units of the access network device 1000 are respectively used to implement the corresponding procedures in the method shown in FIG. 1 .
  • the access network device 1000 may be corresponding to the access network device in the resource configuration method in the foregoing embodiment of this application and the access network device 1000 in this embodiment of this application, and the foregoing or other operations and/or functions of the units of the access network device 1000 are respectively used to implement the corresponding procedures in the method shown in FIG. 1 .
  • no details are repeated herein.
  • the transceiver may be a wired transceiver, a wireless transceiver, or a combination thereof.
  • the wired transceiver may be, for example, an Ethernet interface.
  • the Ethernet interface may be an optical interface, an electrical interface, or a combination thereof.
  • the wireless transceiver may be, for example, a wireless local area network transceiver, a cellular network transceiver, a combination thereof.
  • the processor may be a central processing unit (English: central processing unit, CPU for short), a network processor (English: network processor, NP for short), or a combination of a CPU and an NP.
  • the processor may further include a hardware chip.
  • the hardware chip may be an application-specific integrated circuit (English: application-specific integrated circuit, ASIC for short), a programmable logic device (English: programmable logic device, PLD for short), or a combination thereof.
  • the PLD may be a complex programmable logic device (English: complex programmable logic device, CPLD for short), a field-programmable logic gate array (English: field-programmable gate array, FPGA for short), a generic array logic (English: generic array logic, GAL for short), or any combination thereof.
  • the memory may include a volatile memory (English: volatile memory), such as a random-access memory (English: random-access memory, RAM for short); or the memory may include a non-volatile memory (English: non-volatile memory), such as a read-only memory (English: read-only memory, ROM for short), a flash memory (English: flash memory), a hard disk drive (English: hard disk drive, HDD for short), or a solid-state drive (English: solid-state drive, SSD for short); or the memory may include a combination of memories of the foregoing categories.
  • a volatile memory such as a random-access memory (English: random-access memory, RAM for short
  • a non-volatile memory such as a read-only memory (English: read-only memory, ROM for short)
  • a flash memory English: flash memory
  • HDD hard disk drive
  • SSD solid-state drive
  • a bus interface may be further included.
  • the bus interface may include any quantity of interconnected buses and bridges that are specifically connected together by circuits that are of one or more processors represented by the processor and of a memory represented by the memory.
  • the bus interface may further connect together various other circuits such as a peripheral device, a voltage stabilizer, and a power management circuit. These are well known in the art, and therefore are not further described in this specification any more.
  • the bus interface provides an interface.
  • the transceiver provides a unit that communicates with various other devices on a transmission medium.
  • the processor is responsible for management of a bus architecture and general processing, and the memory may store data that is used by the processor during an operation.
  • These computer program instructions may be provided for a general-purpose computer, a dedicated computer, an embedded processor, or a processor of any other programmable data processing device to generate a machine, so that the instructions executed by a computer or a processor of any other programmable data processing device generate an apparatus for implementing a specified function in one or more processes in the flowcharts and/or in one or more blocks in the block diagrams.
  • These computer program instructions may be stored in a computer readable memory that can instruct the computer or any other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory generate an artifact that includes an instruction apparatus.
  • the instruction apparatus implements a specific function in one or more processes in the flowcharts and/or in one or more blocks in the block diagrams.
  • These computer program instructions may be loaded onto a computer or another programmable data processing device, so that a series of operations and steps are performed on the computer or the another programmable device, thereby generating computer-implemented processing. Therefore, the instructions executed on the computer or the another programmable device provide steps for implementing a specific function in one or more processes in the flowcharts and/or in one or more blocks in the block diagrams.

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Claims (13)

  1. Procédé de configuration de ressource, comprenant les étapes consistant à :
    recevoir (103), par un terminal, une information d'indication, l'information d'indication étant utilisée pour indiquer une largeur de sous-porteuse utilisée pour un premier canal de commande, un nombre maximum de symboles occupés par le premier canal de commande étant déterminé par la largeur de sous-porteuse et différentes largeurs de sous-porteuse correspondant à différents nombres maximums de symboles ; et
    déterminer (104), par le terminal sur la base de l'information d'indication, un nombre de symboles occupés par le premier canal de commande, le nombre de symboles occupés par le premier canal de commande étant inférieur ou égal au nombre maximum de symboles,
    la largeur de sous-porteuse comprenant une première largeur de sous-porteuse et une seconde largeur de sous-porteuse et le nombre maximum de symboles occupés par le premier canal de commande comprenant un premier nombre maximum de symboles et un second nombre maximum de symboles, le premier nombre maximum de symboles correspondant à la première largeur de sous-porteuse et le second nombre maximum de symboles correspondant à la seconde largeur de sous-porteuse ; et
    le fait que les différentes largeurs de sous-porteuse correspondent à différents nombres maximums de symboles comprenant :
    un rapport entre le premier nombre maximum de symboles et le second nombre maximum de symboles est égal à un rapport entre la première largeur de sous-porteuse et la seconde largeur de sous-porteuse, la première largeur de sous-porteuse étant différente de la seconde largeur de sous-porteuse.
  2. Procédé selon la revendication 1, dans lequel le nombre de symboles occupés par le premier canal de commande est inférieur ou égal à un nombre maximum de symboles compris dans une région de ressource dans le domaine temporel du premier canal de commande, la région de ressource dans le domaine temporel étant prédéfinie ou la région de ressource dans le domaine temporel étant indiquée par une information de système, une signalisation de couche supérieure ou une information d'accès initial, et la détermination, par le terminal, du nombre de symboles occupés par le premier canal de commande comprenant les étapes consistant à :
    déterminer, par le terminal sur la base de la largeur de sous-porteuse, le nombre maximum de symboles compris dans la région de ressource dans le domaine temporel ; et
    déterminer, par le terminal, le nombre maximum de symboles compris dans la région de ressource dans le domaine temporel comme étant le nombre de symboles occupés par le premier canal de commande.
  3. Procédé selon la revendication 1, dans lequel l'information d'indication est en outre utilisée pour indiquer le nombre de symboles occupés par le premier canal de commande et dans lequel la détermination, par le terminal, d'un nombre de symboles occupés par le premier canal de commande comprend l'étape consistant à :
    déterminer, par le terminal sur la base de l'information d'indication dans un Me intervalle après un intervalle où l'information d'indication est reçue, un nombre de symboles occupés dans le Me intervalle par le premier canal de commande, où M est un entier positif supérieur ou égal à 1.
  4. Procédé selon la revendication 1, dans lequel la détermination, par le terminal sur la base de l'information d'indication, d'un nombre de symboles occupés par le premier canal de commande comprend l'étape consistant à :
    déterminer, par le terminal sur la base de l'information d'indication dans N intervalles consécutifs commençant par un Pe intervalle après un intervalle où l'information d'indication est reçue, un nombre de symboles occupés dans chacun des N intervalles par le premier canal de commande, où P et N sont des entiers positifs supérieurs à 1, où N est une valeur prédéfinie ou N est déterminé par le terminal sur la base d'une configuration de signalisation de couche supérieure reçue.
  5. Procédé selon l'une quelconque des revendications 1 et 4, le procédé comprenant en outre, après la détermination, par le terminal sur la base de l'information d'indication, d'un nombre de symboles occupés par le premier canal de commande, les étapes consistant à :
    obtenir, par le terminal, une information de commande sur le premier canal de commande, l'information de commande étant utilisée pour indiquer une largeur de sous-porteuse utilisée pour un second canal de commande ; et
    déterminer, par le terminal sur la base de l'information de commande, un nombre de symboles occupés par le second canal de commande, l'information de commande indiquant en outre une région de ressource dans le domaine temporel occupée par le second canal de commande ; et
    la détermination, par le terminal sur la base de l'information de commande, d'un nombre de symboles occupés par le second canal de commande comprend les étapes consistant à :
    déterminer, par le terminal sur la base de la largeur de sous-porteuse utilisée pour le second canal de commande, un nombre maximum de symboles compris dans la région de ressource dans le domaine temporel et occupés par le second canal de commande ; et
    déterminer, par le terminal, le nombre maximum de symboles compris dans la région de ressource dans le domaine temporel et occupés par le second canal de commande comme étant le nombre de symboles occupés par le second canal de commande.
  6. Procédé de configuration de ressource, comprenant les étapes consistant à :
    générer (101), par un dispositif de réseau d'accès, une information d'indication, l'information d'indication étant utilisée pour indiquer une largeur de sous-porteuse utilisée pour un premier canal de commande, un nombre maximum de symboles occupés par le premier canal de commande étant déterminé par la largeur de sous-porteuse et différentes largeurs de sous-porteuse correspondant à différents nombres maximums de symboles ; et
    envoyer (102), par le dispositif de réseau d'accès, l'information d'indication à un terminal,
    la largeur de sous-porteuse comprenant une première largeur de sous-porteuse et une seconde largeur de sous-porteuse et le nombre maximum de symboles occupés par le premier canal de commande comprenant un premier nombre maximum de symboles et un second nombre maximum de symboles, le premier nombre maximum de symboles correspondant à la première largeur de sous-porteuse et le second nombre maximum de symboles correspondant à la seconde largeur de sous-porteuse ; et
    le fait que différentes largeurs de sous-porteuse correspondent à différents nombres maximums de symboles comprenant :
    un rapport entre le premier nombre maximum de symboles et le second nombre maximum de symboles est égal à un rapport entre la première largeur de sous-porteuse et la seconde largeur de sous-porteuse, la première largeur de sous-porteuse étant différente de la seconde largeur de sous-porteuse.
  7. Procédé selon la revendication 6, dans lequel le nombre de symboles occupés par le premier canal de commande est inférieur ou égal à un nombre maximum de symboles compris dans une région de ressource dans le domaine temporel du premier canal de commande, la région de ressource dans le domaine temporel étant prédéfinie ou la région de ressource dans le domaine temporel étant indiquée par une information de système, une signalisation de couche supérieure ou une information d'accès initial.
  8. Procédé selon l'une quelconque des revendications 6 et 7, dans lequel l'information d'indication indique un nombre de symboles occupés par le premier canal de commande qui est transmis dans un Me intervalle après un intervalle où l'information d'indication est envoyée, où M est un entier positif supérieur ou égal à 1.
  9. Procédé selon l'une quelconque des revendications 6 et 7, dans lequel l'information d'indication indique un nombre de symboles occupés par le premier canal de commande qui est transmis dans chaque intervalle de N intervalles consécutifs commençant par un Pe intervalle après un intervalle où l'information d'indication est envoyée, où P et N sont des entiers positifs supérieurs à 1.
  10. Procédé selon l'une quelconque des revendications 6 à 9, le procédé comprenant en outre l'étape consistant à :
    envoyer, par le dispositif de réseau d'accès, une information de commande au moyen de la ressource temps-fréquence utilisée pour transmettre le premier canal de commande,
    l'information de commande étant utilisée pour indiquer une largeur de sous-porteuse utilisée pour un second canal de commande ou l'information de commande étant utilisée pour indiquer une information concernant une largeur de sous-porteuse pour un canal de données d'un second canal de commande, l'information de commande indiquant en outre une région de ressource dans le domaine temporel occupée par le second canal de commande.
  11. Appareil de configuration de ressources, configuré pour réaliser le procédé selon l'une quelconque des revendications 1 à 5.
  12. Appareil de configuration de ressources, configuré pour réaliser le procédé selon l'une quelconque des revendications 6 à 10.
  13. Support de stockage informatique, stockant des instructions de programme informatique qui, lorsqu'elles sont exécutées par un processeur, amènent le processeur à réaliser le procédé selon l'une quelconque des revendications 1 à 10.
EP17888964.8A 2016-12-31 2017-12-07 Procédé et dispositif de configuration de ressources Active EP3531770B1 (fr)

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WO2018121211A1 (fr) 2018-07-05
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US20190297616A1 (en) 2019-09-26
JP2020503754A (ja) 2020-01-30

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